Furnace-retort



W. B. EUDI'SON AND H. S. OWENS.

FURNACE RETORT. v

APPUCATION FILED MAY 3!, m9.

Patented Apr. '25, 1922.

' 2 SHEETS-SHEET l.

. INVENTURS gy wyf A BWEYJ W. EBDiSON AND HTS. OWENS:

FURNACE RETORT.

MPUCATI'JN man mAvsl, x919.

Patented Apr. 25, 1922.

ISWSHEET A OBI/H5 s 1; W ins ref AT-mo 'AH/libll' EDDISGN. G3? IRVINGTON, NEW YORK, AND El. (ll 133.13%, OI? SLERfiE-Y, ASSIGNGBS TO INTERNA'KEDNAL CGELL PBQD' JCTS (1018," 325 EP'JHZQ DZQTD, VEBJGINIA, A COBFQRATIGN 01'? f ER/Gil i 13L.

romlaon-nn'sonr.

Application. filed May 31,

a]? "w '55 77mg concern i that we, lVILLIAM BARTON ll A111! S. Owens, citizens of :ates, and residents, respeclgvington, county of lvestchester, New York, and of lrvington, llsscx, and State of New Jersey, i certain new and useful Improve- -,i l nrnace-l etorts, of which the following a specification.

invention relates to improvements in turi'iaii-e-rctorts and is particularly directed to a constrnchm having a longitudinally exc ling tubular inner wall or retort shell c which coal is heated in order to caror partially carhonize it and about tubule." inner all or retort shell is masonry constructed so as to pro combustion flow through narrow or led openings or passageways to the plac s where tiieproducts of combustion can he employed for heating the tubular inner wall or re nt shell.

l masonry is pro tel-ably constructed so re are a number of vertically and transversely extending partitions, servingto define corresporuling vertically and transextending spaces or heating fines constitutingthe places where the products of conilmsticn can he employed for heattubular inner wall or retort shell. spaces are arranged in a set or sets, l or preferably extend along till) lar inncr wall or retort shell to the products of combustion after, through the restricted openings or -ways leading from the combustion chamber or combustion chamhers The irn'ention is directed to the features specification of Letters Zatent. Paienigfl Ap a 25 1%22,

1919. Serial No. 300,37.

The retort has a longitudinally extending tubular inner wall or retortshell heartshaped in cross-section and designated 2 At one end of the retort there is located a head 4 and means, indicated as 5, for feed. ing coal to the upper interior portion of the retort andthis end of the retort is referred to as the charging end. The other end of the retort has a head, as 6, and is referred to as the discharging end. A pair of shafts, as 7, 7, extends through these heads and each carries paddles or blades, as 8, constructed so as to agitate or mix the material within the retort and so as to conthe material from the charging end of the retort toward the discharging end thereof. The coal which is charged into the re tort at one end thereof is progressively and uniformly heated throughout in a manner from the retort through a discharge opening or conduit 9 having asuitahle valve or sealing means 10 at the lower portion thereof for permitting a discharge of the material. The exterior of the tubular inner wall or retort shell is heated, as will hereafter more fully appear. and the gases'and vapors given ofi' during the heating operation are withdrawn, as through piping 11.

The construction of the feeding means is such that the coal can be charged to the interior of the retort without permitting the entrance of air to or the escape (if-gases from the interior of the retort. The construction, where the shafts pass through the heads, is also such as to permit the shafts to rotate without permitting the entrance of air into or the escape of gas from the interior of the retort and. the valve or seal ing means is also such as to permit the material to be discharged from the retort when properlycarbonized without permitting the entrance of any substantial amount from the base or floor construction 12 and also extending longitudinally from what may be referred to as the upright trans versely extending end walls 14: and 15. In the base or floor construction 12 there is provided a fire-brick 16 built so as to form two. "longitudinally extending combustion chambers 17 and 18 separated by longitudina-lly extending upright partitions 1.9; The partition 19 and side walls 20 may be referred to as the side walls of the combustion bomber and at intervals along the combustion chamber there are located transversely extending arches. 21 constituting a series of arches extending from combustion. chamber side wall or side portion 20 to combustion chamber side wall or longitudinally extending upright partition. 19. The. portion-of each side wall which defines the combustion space has an upper part extending upwardly and inwardly whereby at the uppermost portion of the combustion spaces there is left a series of relatively narrow slits or re stricted openings as 22. The width of each of the openings is clearly shown in Figure l. and the length of the openings is clearly shown in Figure 2. At one end of each of the combustion chambers there is located a burner 23 constructed so that there is pr0- vided a mixture of gas and air in a manner whereby combustion can take place along substantially the full length of the combustion chamber. In other words, a mixture oi gas and air is projected in a longitudinal direction. through the medium of this'burner into and along each combustion chamber. The burner 23 has a valve-controlledmeans 23" for supplying fuel to the combustion chamber-and also a damper-controlled openrolled by' a damper 2 through the chamber.

The upper portion of the side walls 13 is constructed so as to provide lbngitudinally extending waste heat fines 26. A horizontal root extends transversely from onemain side-wall to the other and also longitudinally from one end wall to the other.

There is a o of vet" ally and transversely extendlocated over and in regislied portion i l-and these partie base or door con- ,r .ipporting combustion enters shown in the drawings amisses struction 12, main side walls 13 and root 25 on the one hand to or substantially to the tubular inner wall or retort shell on the other. In order to permit of expansion of the tubular inner wall or retort shell with respect to each of the transversely extend ing partitions the construction which provides them is cut off or made so as to leave an expansion space, as 28. The products of combustion passupwardly through each of the combustion chambers, as 17 or 18,

through the series of restricted openings or passageways 22 into the lower portion of the several vertically extending spaces or heating lines 29 on opposite sides of the transverse partitions.

In order to protect the lower portion of the tubular inner Wall or shell from the. intense heat of the upwardly flowing hot products of combustion as they pass through the restricted passageways into the several heating fiues bafile plates 30 are provided, of carborundumfor example, which are arranged between the restricted openings 22 and the portion of the tubular inner wall or retort shell opposite thereto. its previously indicated, the vertically and transversely egrtending spaces are divided into two sets, pne set at or along the longitudinal righthand side of the retort shown, in Figurol and the other set at or along the longitudinal left hand side of the retort shown in the same figure,this division being efiected by means of the vertically and iongitudinally extending partition. 31 which. extends from the door construction to the under side of the tubular inner wall or retort shell. The products of combustion pass from each of the heating lines 29 through openings 32 controlled by a dam er 33 into the waste heat flue 26, previous y referred to, and which openings are relied upon to conduct the waste gases from the furnace.

The tubular inner" wall or retortshell may be made of metal or of suitable refractory material, .as carborundum block, and the transversel extending-partitions are prefer'ably mace of suitable refractory material as, tor example, specially iconstructed brick of the shape indicated in the drawings.

While according to the specificillustration of the invention and according to the preferred form thereof there is employed a construction providing two longitud nally extending combustion "chambers located in the base or door construction m, still ac cording to the broader aspect of the inven tion it would be possible to make a construction wherein there is only a single. longitudinally extending combustion chamber from which the products of combustion flow laterally, vertically or otherwise, through a restricted opening or passageway or pas segeways to the places where the tubular inner wall or retort shell is heated. it will "sherein, masonry on the exterior the i'ciort shell and with? the i'clorl snell providing the furnace proper of the furnace-rotors, the mesonry being eonssructed so as to have s longilionspece and iii; an end thereof, the

'ludinally exlendin combustion SpH-(k, below the retort shell, and means for supplyinggzus and air lo the interior of said combustion space and an; an end thereof, the furnace retort construction being such that vertically extending heating l'liies ari'zingevl along the retort shell and also being such that prod UC'lZS of combustion pass from she combustion space into each of-mhe hosting fines through restricted passageway or opening leading 'ZOHI the combustion space to vthe ll filing us, 7 Y

2. A furnace-resort comprising in combination a longitudinally extending retort shell providing she retort pi'openof the furnacerelorl mixing and conveying means compri overlupping paddles, and masonry on the exterior of the retort shell and pi'mjiding with ltlie'retorl; shell the furnace propel of the furnace-retort, the masonry heing' construcetl so to provide longitudinally exten' i g combustion spaces, one below the longitudinal right hand half of the retort shell and one below the longitudinal left hand half, the furnace-retort having means for supplying and air i0 the interior of each said longisudinelly extending; combuslui'nsco retort construciion being such that .w i'licully extending healing lines are arranged along" ihe feifil l shell and also being: such thus producis of combustion pass into each of the heat"- ing lines through a restricted pusszwemiy or opening leading" from ,the combustion SPHCB corresponding to the heating i'luc.

A furnace-retort having a longitmlh nully erfcnding retort shell. mixing sud conveying means therein, refractory masonry on the exterior of said shell constructed so as to provide a floor poriion below the Whirl; shell and so as to provide upwardly exlcnilmg side walls along the exiei'ioi' ol' the i'cloi't sliell, the floor poclion haying hollow long tiulinally ex'lendmg' ineniheis forming or providing combustion spaces, and means for su oolying and to ,the hill Inc of so h of the comhusiion spaces, lhe lull'ilfi'lfi'flLOl'h having v 'ical transverse partitions dividing he space lJB' ZWFJSIl the iooi construction de Wells on the one hand and the retort and 1 the other lfilf; he mg: lines arranged hello l: shell, masonry floor 'he relio combustion pass from said combustion spaces through restricted openings into said hesh lug flues, the masonry also having at and along the upper portions thereof longitudinally extending waste heat fines or passageuys leading from the heating flues lo the waste heat lines, and dampers for conli'olling the of said openings. y

l. A, furnace-Felon having a longitudinelly extending i'ctoixt shell, overlapping puddles for conveying material through said resort, and re'l'racioi'y masonry on the exisrior of said shell constructed so as to provide a floor provide side walls extending along the ex.- .terior of the retort shell and so as to provide s Waste heal: flue construction, the llGOYPOT- lion having therein a longitudinally extend ing combustion chamber, said furnace-retell, having means for supplying gas and all "lo portion below the retort shell so as to the interior of the combustion chamber, the I furnace-retort also having transverse pal-r titions dividing the space between the floor construction and side Walls on the one hand and the retort shell on the other into a series nally extending retort shell, mixing and coo veying" means therein, masonry providing a fioonporbion below and spaced from the shell,- :1 vertical and longitudinally exlenvl ing partition extending from the floor poi tion to the exterior longitudinal confirsl portion of the resort shell, vertically and transversely extending partitions arranged so to define healing fines arranged along the exterior of the retort shell, the masonry floor being;- oonstructed so as to provide longitudi' nzilly extending con'ilmstion spaces therein, and means for supplying fuel and oh to support combussion to the interior sa-icll combustion spaces, which combustion splices have the upper portion ibel-col. roof members with openings therein for providing resl-ricl/ed passageways through which,

veying means the-rein. masonry providing aill-53 has atv the u per b 'b lo d spaced fronrthe retortshell, vertically and transversely extending,"partitions arranged so as to define sting fiues arranged along the exterior of lie-retort shelhthe masonry floor being conuctedso; as to provide therein a longimay extending combustion chamber,

ineahs for supplying fuel and air to support combustion-to the interior of said combustron chamber,- wh ch combustion chamber portion thereof a. roof with openings 'therein for providing restricted chamber to said. heating flues,

which products of from the combustion and batlle passageways through combustion can pass plateslocated-on said roof openings and adjacent 'to said retort shell to protect the l as w A'gfiiiurnace-retort having masonry pro- 'dmg a longitudinally extending combusxgau ehamber and also having means for supplying fuel to and for permitting air for supp bustion chamber, the masonry being constructed orting combustion to enter the comso -that restricted passageways are arrangedor extend along the combustion chamber-for permitting the products or comhustion' to flow laterally from the combustion chamberrthrough said passageways to a 1 place or places Where the products of com- -hustion heat the retort and mixing and conveying means in said retortf iturnacewetort with masonry con retracted so as toprovide a longitudinally ex iglissss tending combustion chamber, the furnace also having means whereby fuel and air are directed to one end of the combustion cham berm a longitudinal direction, the masonry being'constructed so as to provide restrictedlatera-l passageways extending alon or arfor conducting the products of combustion laterally from the combustion chamber and also so as to provide a series of laterally or transversely extending heating fines arranged to receive-the products of combustion delivered thereto through said restricted passageways, the furnace also having means for supplying proportioned gas and air that is projected in a longitudinal direction into the combustion chamber and mix ing and conveying means therein.

This specification signed the 12" May A. D. 1919.,

WiLLmr i Barron 'nannr s. ownus.

day of Ennrsort 

